161880016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{839}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 324979200

約数和(自身を除く): 163099184

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 389, 496, 778, 839, 1556, 1678, 3112, 3356, 6224, 6712, 12059, 13424, 24118, 26009, 48236, 52018, 96472, 104036, 192944, 208072, 326371, 416144, 652742, 1305484, 2610968, 5221936, 10117501, 20235002, 40470004, 80940008, 161880016]

約数ペア:

[(1, 161880016), (2, 80940008), (4, 40470004), (8, 20235002), (16, 10117501), (31, 5221936), (62, 2610968), (124, 1305484), (248, 652742), (389, 416144), (496, 326371), (778, 208072), (839, 192944), (1556, 104036), (1678, 96472), (3112, 52018), (3356, 48236), (6224, 26009), (6712, 24118), (12059, 13424)]